Need input on 37mm AA

[Der Teddy Bar]

Guys N Girls,
I am seeking input on 37mm AA.

I firstly need to ensure that the values are accurate for blast range/s.
37mm HE Min 1 Max 2 metres
37mm AP Min 0.3 Max 0.6 metres
37mm AA Min 2 Max 4 metres

Also, in relation to the 20mm, if we said that the 20mm was 100, what would the 37mm be?

Thanks in advance.